AT&T receives FCC waiver to roll out Wi-Fi calling
AT&T offered Wi-Fi calling in iOS 9 beta, but removed the feature as it did not comply with FCC's regulations that mandated teletypewriter support (TTY) for the hearing-impaired. The carrier has obtained a waiver that allows it to roll out Wi-Fi calling using a newer form of accessibility service called real-time text (RTT).
While announcing the news, AT&T also challenged T-Mobile and Sprint, stating that they did not seek out a waiver for lack of TTY support in their implementation of Wi-Fi calling:
We'll let you know once AT&T announces a specific date for the rollout.
Source: AT&T, FCC; Via: Engadget
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